Athens Mayor Nikitas Kaklamanis and World Centres of Compassion for Children International (WCCCI) founder and chairman Betty Williams today underlined the need to take action to raise public awareness of issues affecting children. During a press conference at City Hall, Mayor Kaklamanis and Ms Williams announced details of a benefit concert featuring Mario Frangoulis and Laria Fabian, to take place tomorrow evening at the Herod Atticus theatre.